/* ═══════════════════════════════════════════════════════════════════
   PorteàPorte — Premium Design System v1.0
   Style : Bleu nuit + bleu électrique · Glassmorphism · Premium
   ═══════════════════════════════════════════════════════════════════ */

:root {
  /* ── Palette Premium (bleu nuit cinématographique) ── */
  --pp-night: #050a18;
  --pp-night-2: #0b1228;
  --pp-night-3: #131c3a;
  --pp-deep: #0a1230;
  --pp-electric: #1f8bff;
  --pp-electric-glow: #3da9ff;
  --pp-electric-bright: #5dbfff;
  --pp-sky: #88cfff;
  --pp-white: #f5f9ff;
  --pp-white-dim: #c6d1e3;
  --pp-white-muted: #8896b3;
  --pp-divider: rgba(125, 161, 220, 0.12);
  --pp-divider-strong: rgba(125, 161, 220, 0.22);

  /* ── Dégradés signature ── */
  --pp-grad-hero: radial-gradient(ellipse at 20% -10%, rgba(31, 139, 255, 0.22), transparent 55%),
                  radial-gradient(ellipse at 80% 110%, rgba(93, 191, 255, 0.18), transparent 50%),
                  linear-gradient(180deg, #050a18 0%, #0b1228 100%);
  --pp-grad-card: linear-gradient(160deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.01) 100%);
  --pp-grad-cta: linear-gradient(135deg, #1f8bff 0%, #5dbfff 100%);
  --pp-grad-cta-hover: linear-gradient(135deg, #3da9ff 0%, #88cfff 100%);
  --pp-grad-text: linear-gradient(120deg, #ffffff 0%, #88cfff 60%, #1f8bff 100%);

  /* ── Ombres premium ── */
  --pp-shadow-sm: 0 2px 8px rgba(5, 10, 24, 0.4);
  --pp-shadow-md: 0 8px 32px rgba(5, 10, 24, 0.45);
  --pp-shadow-lg: 0 20px 60px rgba(5, 10, 24, 0.55);
  --pp-shadow-glow: 0 0 40px rgba(31, 139, 255, 0.35);
  --pp-shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--pp-divider);

  /* ── Rayons & espacements ── */
  --pp-r-sm: 10px;
  --pp-r-md: 16px;
  --pp-r-lg: 22px;
  --pp-r-xl: 28px;
  --pp-r-pill: 999px;

  /* ── Easings ── */
  --pp-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --pp-ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Glassmorphism utility ── */
.pp-glass {
  background: rgba(11, 18, 40, 0.6);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--pp-divider-strong);
  border-radius: var(--pp-r-lg);
}

/* ── Bouton premium ── */
.pp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: inherit;
  font-weight: 800;
  font-size: 0.98rem;
  letter-spacing: -0.005em;
  border-radius: var(--pp-r-pill);
  border: 0;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s var(--pp-ease), box-shadow 0.25s var(--pp-ease), background 0.25s var(--pp-ease);
  white-space: nowrap;
}
.pp-btn-primary {
  background: var(--pp-grad-cta);
  color: #051022;
  box-shadow: var(--pp-shadow-md), 0 0 0 0 rgba(31, 139, 255, 0);
}
.pp-btn-primary:hover, .pp-btn-primary:focus-visible {
  background: var(--pp-grad-cta-hover);
  transform: translateY(-2px);
  box-shadow: var(--pp-shadow-lg), 0 0 28px rgba(93, 191, 255, 0.45);
}
.pp-btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--pp-white);
  border: 1px solid var(--pp-divider-strong);
  backdrop-filter: blur(12px);
}
.pp-btn-ghost:hover, .pp-btn-ghost:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--pp-electric);
  transform: translateY(-2px);
}
.pp-btn-lg { padding: 18px 36px; font-size: 1.06rem; }
.pp-btn-sm { padding: 10px 18px; font-size: 0.88rem; }

/* ── Carte premium ── */
.pp-card {
  position: relative;
  background: var(--pp-grad-card);
  border: 1px solid var(--pp-divider);
  border-radius: var(--pp-r-lg);
  padding: 28px;
  box-shadow: var(--pp-shadow-card);
  transition: transform 0.35s var(--pp-ease), border-color 0.3s var(--pp-ease), box-shadow 0.35s var(--pp-ease);
  overflow: hidden;
}
.pp-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(31, 139, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s var(--pp-ease);
  pointer-events: none;
}
.pp-card:hover { transform: translateY(-6px); border-color: var(--pp-divider-strong); box-shadow: var(--pp-shadow-lg); }
.pp-card:hover::before { opacity: 1; }

/* ── Eyebrow premium ── */
.pp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(31, 139, 255, 0.1);
  border: 1px solid rgba(31, 139, 255, 0.3);
  color: var(--pp-electric-bright);
  font-weight: 700;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--pp-r-pill);
}

/* ── Titres ── */
.pp-h1 {
  font-size: clamp(2.4rem, 6.5vw, 5rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 22px;
  color: var(--pp-white);
}
.pp-h1 .grad {
  background: var(--pp-grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.pp-h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--pp-white);
  margin: 0 0 12px;
}
.pp-h3 {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--pp-white);
  margin: 0 0 8px;
}
.pp-lede {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.6;
  color: var(--pp-white-dim);
  max-width: 620px;
}

/* ── Icône premium (cercle dégradé) ── */
.pp-icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(31, 139, 255, 0.12);
  border: 1px solid rgba(31, 139, 255, 0.25);
  color: var(--pp-electric-bright);
  flex-shrink: 0;
}
.pp-icon-circle svg { width: 24px; height: 24px; stroke-width: 2; }
.pp-icon-circle.lg { width: 64px; height: 64px; border-radius: 20px; }
.pp-icon-circle.lg svg { width: 30px; height: 30px; }

/* ── Hover lift utility ── */
.pp-lift { transition: transform 0.3s var(--pp-ease); }
.pp-lift:hover { transform: translateY(-4px); }

/* ── Fade-in au scroll (subtle) ── */
@keyframes ppFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.pp-fade-up { animation: ppFadeUp 0.8s var(--pp-ease) both; }
.pp-fade-up.d1 { animation-delay: 0.1s; }
.pp-fade-up.d2 { animation-delay: 0.2s; }
.pp-fade-up.d3 { animation-delay: 0.3s; }
.pp-fade-up.d4 { animation-delay: 0.4s; }

/* ── Glow pulse autour d'un élément focus ── */
@keyframes ppPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(31, 139, 255, 0.6); }
  50% { box-shadow: 0 0 0 14px rgba(31, 139, 255, 0); }
}
.pp-pulse { animation: ppPulse 2.5s infinite; }

/* ── Sticky CTA mobile (visible < 720px) ── */
.pp-sticky-cta {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 840;
  display: none;
  padding: 12px 14px calc(12px + env(safe-area-inset-bottom, 0));
  background: rgba(5, 10, 24, 0.92);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--pp-divider-strong);
  box-shadow: 0 -8px 28px rgba(0,0,0,0.4);
}
.pp-sticky-cta .pp-btn { width: 100%; padding: 14px 18px; font-size: 1rem; }
@media (max-width: 720px) {
  .pp-sticky-cta { display: block; }
  body { padding-bottom: 76px; }
  /* La pilule de niveau se décale au-dessus du CTA sticky */
  .pp-layer-pill { bottom: 86px; }
}

/* ── Section padding standard ── */
.pp-section { padding: clamp(64px, 9vw, 120px) clamp(18px, 4vw, 48px); }
.pp-container { max-width: 1200px; margin: 0 auto; }

/* ── Grid auto responsive ── */
.pp-grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.pp-grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px; }

@media (prefers-reduced-motion: reduce) {
  .pp-fade-up, .pp-pulse, .pp-btn, .pp-card, .pp-lift { animation: none !important; transition: none !important; }
}

/* ═══════════════════════════════════════════════════════════════
   COUCHES D'ENGAGEMENT — Simple / Découverte / Immersion
   ═══════════════════════════════════════════════════════════════ */
/* Par défaut : Couche 1 (Simple). data-layer="2" et "3" sont cachés. */
body[data-layer-mode="simple"] [data-layer="2"],
body[data-layer-mode="simple"] [data-layer="3"] { display: none !important; }

/* Découverte : on montre couche 2, on cache couche 3 */
body[data-layer-mode="discovery"] [data-layer="3"] { display: none !important; }

/* Immersion : tout visible — pas de override (état naturel) */

/* Pilule sélecteur couche (subtile, en bas à gauche) */
.pp-layer-pill {
  position: fixed;
  bottom: 18px;
  left: 18px;
  z-index: 850;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 6px 6px 14px;
  background: rgba(11, 18, 40, 0.85);
  border: 1px solid var(--pp-divider-strong);
  border-radius: var(--pp-r-pill);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--pp-white-dim);
  backdrop-filter: blur(20px);
  box-shadow: var(--pp-shadow-md);
  cursor: pointer;
  user-select: none;
  transition: transform 0.2s var(--pp-ease), border-color 0.2s;
}
.pp-layer-pill:hover { border-color: var(--pp-electric); transform: translateY(-2px); }
.pp-layer-pill .pp-layer-label { color: var(--pp-electric-bright); }
.pp-layer-pill .pp-layer-chevron {
  background: var(--pp-electric);
  color: #051022;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 900;
  margin-left: 4px;
}

/* Menu dropdown des couches */
.pp-layer-menu {
  position: fixed;
  bottom: 60px;
  left: 18px;
  z-index: 851;
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  background: rgba(11, 18, 40, 0.95);
  border: 1px solid var(--pp-divider-strong);
  border-radius: var(--pp-r-md);
  min-width: 220px;
  backdrop-filter: blur(20px);
  box-shadow: var(--pp-shadow-lg);
}
.pp-layer-menu.open { display: flex; }
.pp-layer-opt {
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--pp-white-dim);
  transition: background 0.2s;
}
.pp-layer-opt:hover { background: rgba(31, 139, 255, 0.1); color: var(--pp-white); }
.pp-layer-opt.active { background: rgba(31, 139, 255, 0.15); color: var(--pp-electric-bright); }
.pp-layer-opt .pp-layer-opt-name { font-weight: 800; font-size: 0.92rem; }
.pp-layer-opt .pp-layer-opt-desc { font-size: 0.74rem; color: var(--pp-white-muted); }

/* Animation subtile quand on débloque une couche */
@keyframes ppLayerUnlock {
  0% { transform: scale(0.6) translateY(20px); opacity: 0; }
  60% { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1) translateY(0); opacity: 1; }
}
.pp-layer-toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 14px 22px;
  background: var(--pp-grad-cta);
  color: #051022;
  border-radius: var(--pp-r-pill);
  font-weight: 800;
  font-size: 0.92rem;
  box-shadow: var(--pp-shadow-lg);
  animation: ppLayerUnlock 0.5s var(--pp-ease) both;
}

/* ── Overrides globaux : on remappe les anciennes couleurs vers la palette bleue ── */
/* Le fichier est chargé APRÈS brand-uniform.css donc :root gagne la cascade */
:root {
  --brand-lime: #5dbfff;
  --brand-cyan: #3da9ff;
  --brand-cyan-dark: #1f8bff;
  --color-lime-accent: #5dbfff;
  --color-cyan-primary: #3da9ff;
  --color-cyan-dark: #1f8bff;
  --color-accent: #5dbfff;
  --accent: #3da9ff;
}

body {
  background: var(--pp-night);
  color: var(--pp-white);
}
.hero, .pourquoi-section, .how-section {
  background: var(--pp-grad-hero);
}
/* Smooth les anciens .btn pour qu'ils héritent un peu du look premium */
.btn:not(.pp-btn) {
  border-radius: var(--pp-r-pill);
  transition: transform 0.25s var(--pp-ease), box-shadow 0.25s var(--pp-ease);
}
.btn:not(.pp-btn):hover { transform: translateY(-2px); }
/* Cards anciennes : ombre douce automatique */
.feature-card, .impact-zone-inner, .porte, .how-step, .pourquoi-card {
  border-radius: var(--pp-r-lg) !important;
  transition: transform 0.3s var(--pp-ease), border-color 0.3s var(--pp-ease), box-shadow 0.3s var(--pp-ease);
}
.feature-card:hover, .porte:hover, .how-step:hover, .pourquoi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--pp-shadow-md);
}
/* Header un peu plus glassy */
.site-header {
  background: rgba(5, 10, 24, 0.7) !important;
  backdrop-filter: blur(20px) saturate(140%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(140%) !important;
  border-bottom: 1px solid var(--pp-divider);
}
/* Eyebrow ancien : style premium */
.eyebrow {
  color: var(--pp-electric-bright) !important;
}
/* Pia strip plus premium */
.pia-guide-strip {
  border-color: var(--pp-divider-strong) !important;
  background: linear-gradient(135deg, rgba(31, 139, 255, 0.08), rgba(93, 191, 255, 0.04)) !important;
  border-radius: var(--pp-r-lg) !important;
}